CN218792414U

CN218792414U - Surgical forceps with pressure measuring function

Info

Publication number: CN218792414U
Application number: CN202320400877.4U
Authority: CN
Inventors: 王集琛; 马鑫
Original assignee: Third Medical Center of PLA General Hospital
Current assignee: Third Medical Center of PLA General Hospital
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-04-07
Anticipated expiration: 2033-03-07

Abstract

The utility model belongs to the technical field of medical instrument, concretely relates to is an operation pincers that possess pressure measurement function, mainly used: operating the operation area in the PN operation and measuring the biological stress on the surface of the patient kidney after the patient kidney is sutured; the external catheter is connected with the external catheter through a handle assembly for holding, one end of the external catheter enters the human body, and the clamping assembly is arranged at the front end of the external catheter and is used for operating the tissues in the operation area; a pressure measuring assembly detachably arranged on the outer wall of the external catheter, and used for entering the human body along with the external catheter part and measuring the pressure of the sutured affected kidney surface; mainly solves the problems that: in clinical practice, the detection of the biological stress on the surface of the kidney of a sutured patient is mostly transferred to pressure measuring equipment in other operations, so that in the operation process, instruments need to be repeatedly replaced, and the problem that an operation channel established by using a poking card is loosened is caused.

Description

Surgical forceps with pressure measuring function

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to is an operation pincers that possess pressure measurement function.

Background

Partial Nephrectomy (PN) belongs to a four-stage operation, and is the main operation mode for treating early-stage kidney cancer (T1 a-T2), and after an incision of a patient is sutured, the surface of the affected kidney of the patient generates stronger biological stress, and the magnitude of the biological stress is related to the prognosis and subsequent treatment of the patient.

In present clinical, to the detection that the patient suffers from kidney surface biological stress after sewing up, mostly borrow the pressure measurement equipment in other operations for in the operation process, need change the apparatus repeatedly, lead to using to stab the operation passageway that the card established and appear becoming flexible.

Therefore, the present invention provides an operating forceps with pressure measuring function to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem that proposes among the background art, the utility model discloses a following technical scheme:

an operating forceps with pressure measuring function comprises

A handle assembly, comprising: the device comprises a first shell, a fixed handle and a trigger handle; the fixed handle is connected with the first shell, and the trigger handle part is arranged in the first shell.

An outer catheter connected to the first housing and having a proximal end and a distal end, wherein the proximal end of the outer catheter is connected to the first housing.

A clamping assembly disposed at a distal end of the outer catheter, the clamping assembly having a clamped state and an expanded state, a first distance between the clamping assembly and the distal end of the outer catheter in the clamped state of the clamping assembly;

a pressure sensing assembly, comprising: second shell, pressure measuring unit, the second shell connect in the outer wall of outside pipe, pressure measuring unit set up in the second shell, wherein, pressure measuring unit has the state of accomodating and spys out the state pressure measuring unit does during the accomodating state, pressure measuring unit accomodate in the second shell pressure measuring unit does during the state of spying out, the spying out of pressure measuring unit part the second shell, and with outside pipe the second distance has between the distal end, just the second distance is greater than first distance.

In some embodiments of the present application, the outer wall of the external conduit is provided with a first magnetic attraction member, the outer wall of the second housing is provided with a second magnetic attraction member, and the first magnetic attraction member and the second magnetic attraction member attract each other, so that the second housing can be detached from the external conduit.

Furthermore, the external conduit has a first side wall, a groove is arranged on the first side wall, the first magnetic attraction piece is arranged in the groove, and after the first magnetic attraction piece and the second magnetic attraction piece are attracted, the second magnetic attraction piece is positioned in the groove.

Optionally, the number of the groove, the first magnetic attraction piece and the second magnetic attraction piece is the same, preferably, the number of the groove, the first magnetic attraction piece and the second magnetic attraction piece is two.

In some embodiments of the present application, a locking assembly is disposed on the second housing, wherein the locking assembly is connected to the load cell assembly, so that the load cell assembly is switched between a storage state and a detection state.

In some embodiments of the present application, the load cell assembly comprises: the device comprises a slender rod piece, a pressure sensor and a control module; the pressure sensor is arranged on the locking assembly and is connected with the second end of the elongated rod piece, and the second end of the elongated rod piece acts on the pressure sensor after the first end of the elongated rod piece is contacted with a target to be detected; the control module is arranged in the second shell and is connected with the pressure sensor through a lead; when the second end of the slender rod piece acts on the pressure sensor, the slender rod piece receives an electric signal transmitted by the pressure sensor.

Further, the first end of the slender rod piece is provided with a ball head.

In some embodiments of the present application, a first drive rod is disposed within the outer conduit; the clamping component is arranged on the first shell, the first shell is provided with a first connecting end, the second shell is provided with a second connecting end, the first shell is provided with a second connecting end, the second connecting end of the first connecting rod is connected with the clamping component, the second connecting end of the second connecting rod is connected with the first connecting rod, and the second connecting end of the second connecting rod is connected with the trigger handle.

Further, a second connecting end of the second transmission rod is set to be a second ball head, a third connecting end is set to be a third ball head, the second ball head is movably connected with the first connecting end, and the third ball head is movably connected with the trigger handle; when the trigger handle moves, the second transmission rod acts on the first transmission rod, so that the first transmission rod moves in the external conduit, and the clamping assembly is switched between the clamping state and the opening state.

Further, the first connecting end is provided with a first ball groove, the trigger handle is provided with a second ball groove, the second ball head is arranged in the first ball groove, and the third ball head is arranged in the second ball groove.

Furthermore, when the clamping component is in the clamping state, the axis of the first transmission rod is overlapped with the axis of the second transmission rod, and when the clamping component is in the opening state, an included angle exists between the axis of the first transmission rod and the axis of the second transmission rod.

The utility model has the advantages that:

(1) The pressure measuring assembly is arranged on the outer wall of the external conduit, so that the pressure measuring assembly can enter the human body along with the clamping assembly, and the times of switching surgical instruments by doctors are reduced.

(2) Through setting up the pressure measurement sub-assembly into the mode that can dismantle in outside pipe, realized pressure measurement sub-assembly and centre gripping subassembly's exclusive use for when centre gripping subassembly is not applicable to certain operation, or this operation only need use the pressure measurement function, can take off the pressure measurement sub-assembly, with the operation of simplifying doctor, avoid taking too much channel space of pricking the card.

Drawings

Fig. 1 is a schematic structural view of a first housing of the present invention;

fig. 2 is a schematic cross-sectional view of a first housing of the present invention;

FIG. 3 is a schematic view of the interior structure of the cavity of the present invention;

FIG. 4 is a schematic view of the external conduit of the present invention;

fig. 5 is a schematic diagram of the pressure measuring assembly in the extended state;

FIG. 6 is a schematic view of the structure of the clamping assembly of the present invention;

fig. 7 is a schematic structural diagram of a second housing of the present invention;

fig. 8 is a schematic structural view of the locking assembly of the present invention;

in the figure, 1, a first housing; 11. fixing a handle; 12. a trigger handle; 121. a first connecting arm; 122. a second connecting arm; 123. a linker; 13. an outer conduit; 131. a first magnetic attraction member; 132. a second magnetic attraction member; 14. a chamber; 15. a first drive lever; 16. a second transmission rod; 17. a first plier mouth; 18. a second plier mouth; 2. a second housing; 21. a limiting groove; 22. a locking member; 23. a slider; 24. a slender rod member; 25. a pressure sensor; 26. a display screen; 27. and (5) starting and stopping a key.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure in the specification. The utility model discloses can also implement or use through other different concrete implementation modes, under the circumstances of conflict-free, the characteristics in following embodiment and the embodiment can the intercombination, based on the embodiment of the utility model provides a, all other embodiments that ordinary skilled person in the art obtained under the prerequisite of not making creative work all belong to the scope of the utility model protection.

Fig. 1 shows the main technical content of the present embodiment, and the present embodiment provides a forceps with a pressure measuring function, which includes a handle assembly including: the device comprises a first shell 1, a fixed handle 11 and a trigger handle 12; wherein, the fixed handle 11 is connected with the first shell 1, and the trigger handle 12 is partially arranged in the first shell 1.

An outer catheter 13 connected to the first housing 1, the outer catheter 13 having a proximal end and a distal end, wherein the proximal end of the outer catheter 13 is first connected to the housing.

And the clamping assembly is arranged at the far end of the external catheter 13, has a clamping state and an opening state, and has a first distance from the far end of the external catheter 13 when the clamping assembly is in the clamping state.

A pressure measurement assembly, comprising: second shell 2, pressure measuring unit, second shell 2 is connected in the outer wall of outside pipe 13, pressure measuring unit sets up in second shell 2, wherein, pressure measuring unit has the state of accomodating and the state of exploring, when pressure measuring unit is for accomodating the state, pressure measuring unit accomodates in second shell 2, when pressure measuring unit is for exploring the state, the second shell 2 of exploring of pressure measuring unit part, and with have the second distance between the distal end of outside pipe 13, and the second distance is greater than the first distance.

Referring to fig. 1-2, in this embodiment, the first housing 1 has a chamber 14, and the chamber 14 has an opening, the fixed handle 11 does not cover the opening after being connected with the first housing 1, and one end of the trigger handle 12 is pivotally arranged in the chamber 14, so that the starting handle can move relative to the fixed handle 11; thereby the main driving point drives the clamping component, so that the clamping component is switched between a clamping state and an opening state, and the operation area is operated.

Referring to fig. 2-3, in this embodiment, the trigger handle 12 includes: the holding part comprises a first end part and a second end part, the first connecting arm 121 and the second connecting arm 122 are arranged at the first end part of the holding part, a distance exists between the first connecting arm 121 and the second connecting arm 122, and preferably, the first connecting arm 121 and the second connecting arm 122 are arranged on the first end part in a mirror image manner; more specifically, the first connecting arm 121 and the second connecting arm 122 are provided with through holes and pivotally connected in the chamber 14 through the through holes, and when the grip portion is pressed, the trigger handle 12 performs a circular motion with the center of the through holes as a base point.

Referring to fig. 1, in the present embodiment, the external catheter 13 has a hole, and a first accommodating cavity and a second accommodating cavity are disposed at a proximal end of the external catheter 13, and the first accommodating cavity and the second accommodating cavity are arranged in a mirror image manner based on an axis of the hole, and a first sliding groove is disposed to communicate the hole with the first accommodating cavity, and a second sliding groove is disposed to communicate the hole with the second accommodating cavity, more specifically, the first accommodating cavity and the second accommodating cavity are close to a distal end of the external catheter 13.

Based on the above arrangement, in order to realize the driving of the clamping component by the second handle, referring to fig. 1-3, in the present embodiment, a connecting body 123 is disposed between the first connecting arm 121 and the second connecting arm 122, the first driving rod 15 is disposed in the channel of the outer conduit 13 and the cavity 14 of the first housing 1, and the first driving rod 15 moves along the axis of the channel of the outer conduit 13 in the radial direction, and the second driving rod 16 is disposed to connect the first driving rod 15 and the connecting body 123, wherein the first driving rod 15 has a driving end and a first connecting end, the second driving rod 16 has a second connecting end and a third connecting end, the driving end portion of the first driving rod 15 is disposed in the first sliding slot and the second sliding slot, and when the first driving rod 15 moves in the channel of the outer conduit 13, the maximum moving range thereof is the same as the maximum length of the first sliding slot and the second sliding slot.

Specifically, the transmission end of the first transmission rod 15 is provided with a first sliding protrusion and a second sliding protrusion, wherein the first sliding protrusion and the second sliding protrusion are arranged in a mirror image mode by taking the axis of the first rod as a reference, the first sliding protrusion extends into the first accommodating cavity through the first sliding groove, the second sliding groove extends into the second accommodating cavity through the second sliding groove, and the first connection end of the first transmission rod 15 is provided with a first ball groove.

The second connection end of the second transmission rod 16 is configured as a first connection ball, and the third connection end is configured as a second connection ball.

A second ball groove is formed in the connecting body 123 between the first connecting arm 121 and the second connecting arm 122, wherein the first connecting ball of the second transmission rod 16 is movably disposed in the first ball groove, and during the movement of the first connecting ball, the outer wall of the first connecting head is always attached to the wall of the first ball groove during the movement, and the second connecting ball of the second transmission rod 16 is movably disposed in the second ball groove, and during the movement of the second connecting head. The outer wall of the second connector is always attached to the groove wall of the second ball groove.

When the clamping device is in a specific use state, the trigger handle 12 drives the first transmission rod 15 to move radially in the pore channel of the external guide pipe 13 through the second transmission rod 16, in the moving process of the first transmission rod 15, the axis of the first transmission rod 15 is always collinear with the axis of the pore channel of the external guide pipe 13, when the first transmission rod 15 drives the clamping component to be in a clamping state, the axis of the second transmission rod is overlapped with the axis of the first transmission rod, and when the clamping component is in an opening state, an included angle exists between the axis of the second transmission rod and the axis of the first transmission rod.

Referring to fig. 2-4 and 6, in the present embodiment, the clamping assembly includes: the clamp comprises a first clamp mouth 17, a second clamp mouth 18 and a plurality of connecting rods, wherein the first clamp mouth 17 and the second clamp mouth 18 are both pivotally connected to the far end of the external conduit 13, the first clamp mouth 17 and the second clamp mouth 18 are arranged at the far end of the external conduit 13 in a mirror image manner, the first clamp mouth 17 is connected with a first sliding bulge and a second sliding bulge through the plurality of connecting rods, and the second clamp mouth 18 is also connected with the first sliding bulge and the second sliding bulge through the plurality of connecting rods; specifically, the first jaw 17 is provided with a first connecting portion and a second connecting portion, and the second jaw 18 is provided with a third connecting portion and a fourth connecting portion.

The connecting rod includes: a first bar, a second bar, a third bar, a fourth bar; one end of the first rod is connected and pivoted to the first connecting part, and the other end of the first rod is hinged to the first sliding protrusion; when the clamp is used, when the transmission end of the first transmission rod 15 moves towards the far end of the outer guide pipe 13, the first rod, the second rod, the third rod and the fourth rod drive the first clamp nozzle 17 and the second clamp nozzle 18 to be in an open state, and when the transmission end of the first transmission rod 15 moves towards the near end of the outer guide pipe 13, the first clamp nozzle 17 and the second clamp nozzle 18 to be in a clamping state.

Referring to fig. 5-6, in the present embodiment, when the first and second

pincer mouths

17 and 18 are in the clamping state, a first vertex is formed between the first and second

pincer mouths

17 and 18, and the first vertex has a first distance from the distal end of the outer conduit 13, and the length of the first distance is the same as the maximum length of the first pincer mouth 17; and when pressure measurement component was for exploring the state, the second shell 2 of exploring of pressure measurement component part to and have the second distance between the distal end of outside pipe 13, and the second distance is greater than first distance, make first pincers mouth 17 and second pincers mouth 18 under the clamping state can not influence the pressure measurement component and surveyed the contact between the kidney, when using, make pressure measurement component and surveyed the kidney body contact, and gently press pressure measurement component, make first pincers mouth 17 and second pincers mouth 18 first apex with surveyed the kidney contact, then obtain the biological stress value on the back kidney surface of sewing up.

Referring to fig. 1 and 4, in the present embodiment, the outer wall of the external conduit 13 is provided with a first magnetic attraction member 131, the outer wall of the second housing 2 is provided with a second magnetic attraction member 132, and the first magnetic attraction member 131 and the second magnetic attraction member 132 are attracted to each other, so that the second housing 2 can be detached from the external conduit 13, and more specifically, the external conduit 13 has a first side wall and a groove is formed on the first side wall, the first magnetic attraction member 131 is disposed in the groove, and after the first magnetic attraction member 131 and the second magnetic attraction member 132 are attracted, the second magnetic attraction member is located in the groove; more preferably, the recess, first magnetism is inhaled piece 131 and second magnetism and is inhaled a 132 quantity the same, the recess, first magnetism is inhaled a 131 and second magnetism and is inhaled a 132 and all set up to two, realize through this setting that the pressure measurement sub-assembly can be quick dismantlement in the outer wall of outside pipe 13, when using, the pressure measurement sub-assembly can be along with the entering human body of outside pipe 13 part, and act on patient's sick kidney, and simultaneously, only need the centre gripping subassembly to carry out the operation in the art when, and can dismantle the outer wall in outside pipe 13 with the pressure measurement sub-assembly, make trigger handle 12 control centre gripping subassembly exclusive use, a passageway space for sparingly stab the card.

Referring to fig. 7-8, in this embodiment, a locking assembly is provided to control the pressure measuring assembly to switch between the storage state and the probing state, specifically, the side wall of the second housing 2 is provided with a limiting groove 21, the locking assembly is provided in the limiting groove 21 and the second housing 2, and is connected to the pressure measuring assembly, wherein the limiting groove 21 has a start end and a tail end, when the locking assembly is located at the start end of the limiting groove 21, the pressure measuring assembly is in the storage state, and when the locking assembly is located at the tail end of the limiting groove 21, the pressure measuring assembly is in the probing state.

More specifically, the locking assembly includes: a locking member 22, a slide bar, a slide member 23; the sliding part 23 is arranged in the second housing 2 in a sliding manner, one end of the sliding rod is integrally connected with the sliding part 23, the other end of the sliding rod is in threaded connection with the locking part 22, the sliding rod slides in the limiting groove 21, and the outer wall of the sliding rod is always tangent to the groove wall of the limiting groove 21; the locker 22 has a locking state in which the locker 22 is closely attached to the outer wall of the second housing 2 so that the slider 23 and the sliding bar cannot move, and a releasing state in which the locker 22 is not in contact with the second housing 2 so that the slider 23 and the sliding bar can slide.

Referring to fig. 7-8, in the present embodiment, the load cell assembly includes: an elongated rod 24, a pressure sensor 25, a control module; wherein, the slender rod 24 has a first end at a second end, the second end of the slender rod 24 is connected with the sliding part 23, so that the first end of the slender rod 24 extends out of the second housing 2 under the action of the sliding part 23, the pressure sensor 25 is arranged on the sliding part 23 and is connected with the second end of the slender rod 24, and after the first end of the slender rod 24 is contacted with the measured object, the second end of the slender rod 24 acts on the pressure sensor 25; the control module is arranged in the second shell 2 and is connected with the pressure sensor 25 through a lead; when the second end of the slender rod 24 acts on the pressure sensor 25, the electric signal transmitted by the pressure sensor 25 is received.

Referring to fig. 7-8, in particular, the control module includes: a power module, a control panel, a display screen 26 and a start-stop key 27; the power module and the control panel are arranged in the second shell 2, the display screen 26 and the start-stop key 27 are arranged on the outer wall of the second shell 2, and the power module, the display screen 26 and the start-stop key 27 are electrically connected with the control panel; in use, the locking assembly pushes the first end of the elongate rod member 24 out of the second housing 2, and after the first end of the elongate rod member 24 contacts the patient's kidney, the control board collects the electrical signal transmitted by the pressure sensor 25 and displays it on the display screen 26.

The utility model discloses a use method:

the pressure measuring assembly is sucked and arranged on the external catheter through the second magnetic suction piece and the first magnetic suction piece, and then the pressure measuring assembly enters the body of the patient from the far end of the external catheter through the operation channel established by the poking card; at the moment, the pressure measuring assembly is in a storage state; the clamping assembly is normally used, after the operation of the clamping assembly on the operation area is finished, when the pressure of the affected kidney is measured, the locking member is unscrewed outside the patient body, the first end of the slender rod piece is contacted with the affected kidney through the sliding rod and the sliding member of the locking member, and after the first end of the slender rod piece is contacted with the affected kidney, the handle assembly is lightly pressed, and whether the affected kidney of the patient is contacted with a first peak of the first forceps mouth and a first peak of the second forceps mouth in a clamping state or not is observed under the endoscope; after the contact, the value of the biological stress shown on the display screen is read.

The above description of the embodiments is only intended to illustrate the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications can be made to the present invention, and these modifications will fall within the protection scope of the claims of the present invention.

Claims

1. A surgical forceps with a pressure measuring function is characterized by comprising:

a handle assembly, comprising: the device comprises a first shell, a fixed handle and a trigger handle; wherein the fixed handle is connected with the first shell, and the trigger handle part is arranged in the first shell;

an outer catheter coupled to the first housing and having a proximal end and a distal end, wherein the proximal end of the outer catheter is coupled to the first housing;

a clamping assembly disposed at a distal end of the outer catheter, the clamping assembly having a clamped state and an expanded state, a first distance between the clamping assembly and the distal end of the outer catheter being in the clamped state;

a pressure sensing assembly, comprising: second shell, pressure cell subassembly, the second shell connect in the outer wall of outside pipe, pressure cell subassembly set up in the second shell, wherein, pressure cell subassembly has the state of accomodating and the state of exploring, pressure cell subassembly does during the state of accomodating, pressure cell subassembly accomodate in the second shell pressure cell subassembly does during the state of exploring, the partly exploration of pressure cell subassembly the second shell, and with outside pipe the second distance has between the distal end, just the second distance is greater than first distance.

2. The forceps with pressure measuring function of claim 1, wherein the outer wall of the external conduit is provided with a first magnetic attraction piece, the outer wall of the second housing is provided with a second magnetic attraction piece, and the first magnetic attraction piece and the second magnetic attraction piece attract each other, so that the second housing can be detached from the external conduit.

3. The forceps of claim 2, wherein the outer tube has a first side wall, the first side wall has a recess, the first magnetic member is disposed in the recess, and the second magnetic member is disposed in the recess after the first magnetic member and the second magnetic member are attracted.

4. The forceps with pressure measuring function of claim 1, wherein a locking assembly is disposed on the second housing, and the locking assembly is connected to the pressure measuring assembly, so that the pressure measuring assembly is switched between the accommodated state and the extended state.

5. The forceps with pressure measuring function of claim 4, wherein the pressure measuring assembly comprises: the device comprises a slender rod piece, a pressure sensor and a control module; the pressure sensor is arranged on the locking assembly and is connected with the second end of the elongated rod piece, and the second end of the elongated rod piece acts on the pressure sensor after the first end of the elongated rod piece is contacted with a target to be detected; the control module is arranged in the second shell and is connected with the pressure sensor through a lead; when the second end of the slender rod piece acts on the pressure sensor, the slender rod piece receives an electric signal transmitted by the pressure sensor.

6. The forceps according to claim 5, wherein the first end of the elongated shaft is configured as a ball head.

7. The forceps with pressure measuring function of claim 1, wherein a first transmission rod is arranged in the outer conduit; the clamping component is arranged on the first shell, the first shell is provided with a first connecting end, the second shell is provided with a second connecting end, the first shell is provided with a second connecting end, the second connecting end of the first connecting rod is connected with the clamping component, the second connecting end of the second connecting rod is connected with the first connecting rod, and the second connecting end of the second connecting rod is connected with the trigger handle.

8. The surgical forceps with the pressure measuring function according to claim 7, wherein a second connecting end of the second transmission rod is provided with a second ball head, a third connecting end is provided with a third ball head, the second ball head is movably connected with the first connecting end, and the third ball head is movably connected with the trigger handle; when the trigger handle moves, the second transmission rod acts on the first transmission rod, so that the first transmission rod moves in the external conduit, and the clamping assembly is switched between the clamping state and the opening state.

9. The surgical forceps with pressure measuring function according to claim 8, wherein the first connecting end is provided with a first ball groove, the trigger handle is provided with a second ball groove, the second ball head is arranged in the first ball groove, and the third ball head is arranged in the second ball groove.

10. The forceps with pressure measuring function of claim 9, wherein when the clamping assembly is in the clamping state, the axis of the first driving rod coincides with the axis of the second driving rod, and when the clamping assembly is in the opening state, an included angle exists between the axis of the first driving rod and the axis of the second driving rod.